Jo Hajnal obtained a PhD in Physics in 1984, and following work on electromagnetism and molecular beam optics, started research in the domain of MRI in 1990. From 1997 to 2002 he led an industrial research team embedded in Hammersmith Hospital, before he was appointed as Professor of Imaging by Imperial College. He has held many senior roles in university and the MRC Clinical Sciences Centre. He joined King’s College London in 2012 as Professor of Imaging Science and now leads a wide ranging research program focusing on Imaging technology, particularly MRI and US, and image acquisition-reconstruction-analysis methods. Areas of special interest are imaging in the presence of motion, particularly neonates and fetuses, parallel imaging (transmit and receive) and accelerated/quantitative imaging. He leads the new 7T for London ultra-high field in vivo imaging initiative, funded by the Welcome Trust, and also the developing Human Connectome Project data acquisition and the iFIND project.